MINING CHEMICALS - MARKET DYNAMICS II-19 Depleting Ore Grades Trigger Demand for Specialized & Customized Chemicals II-19 Table 14: Median Grade of World's Top 10 Gold Operations (1998-2014) (includes corresponding Graph/Chart) II-19 Complex Mineral Ores to Drive Demand for Specialty Chemicals II-20 Technological Evolutions Drive Ahead the Market II-20 Logistics - A Major Factor Influencing Growth II-21 Trend towards Greener Chemicals II-21 Safety Concerns Alter the Product Mix II-22 Demand for Sodium Cyanide on Surge II-22 Water Treatment Opens Doors for Mining Chemicals II-23 Water Usage Intensity of Select Minerals and Metals II-24 Niche Chemistries Take Over Xanthates
The new xanthates
dryer is currently being installed and commissioned and will remove the bottleneck that previously constrained plant output.
In 1924 Keller, working for the Minerals Separation Company, patented the use of less than one per cent of a soluble organic compound, particularly the xanthates
, as a mineral flotation reagent.
Lai, JT, Shea, R, "Controlled Radical Polymerization by Carboxyl- and Hydroxyl-Terminated Dithiocarbamates and Xanthates
Processing of metal ores typically involves the addition of chemicals such as sodium hydroxide, sulfuric acid, sodium cyanide, copper sulfate, sulfur dioxide, xanthates
, diesel oil, amines, polypropylene glycol methyl ether, and dozens more.
Other subjects explored include macromolecule design by interchange of xanthates
, surface and particle modification via the RAFT process, and new materials prepared via the RAFT process.
Macromolecular Design via the Interchange of Xanthates
Furthermore, cure systems containing xanthates
could enable vulcanization over a broader range of temperatures.
Gishler's research covered a wide number of activities including the pyrolysis of natural gas, the chemistry of wood pulping, the development of refractories from natural mineral deposits, the purification of silver, gold, uranium and sodium sulfate from natural deposits, the purification of cooling water for atomic reactors, and the manufacture of pentaerythritol, alkyl xanthates
, and solid formaldehyde, for example.